In an astronomical telescope in normal adjustment, a straight black line of length L is drawn on the objective lens. The eyepiece forms a real image of this line. The length of this image is l . The m

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In an astronomical telescope in normal adjustment, a straight black line of length L is drawn on the objective lens. The eyepiece forms a real image of this line. The length of this image is l . The magnification of the telescope is

TestHub · Accepted Answer

The eyepiece images the objective: u = f o ​ + f e ​ , and 1/ v = 1/ f e ​ − 1/ ( f o ​ + f e ​ ) . ​ v / u = f e ​ / f o ​ ⇒ l / L = f e ​ / f o ​ . ​ m = f o ​ / f e ​ = L / l . ​

Physics - Geometrical Optics Question with Solution | TestHub

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